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Finding the Fourth Proportional to 634.55, 951.85 and 345.99

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Solution

The fourth proportional to 634.55, 951.85 and 345.99 is: 519.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.55 : 951.85 = 345.99 : x
  2. Step 2: Convert to fraction form
    634.55/951.85 = 345.99/x
  3. Step 3: Cross multiply
    634.55x = 951.85 × 345.99
  4. Step 4: Simplify right side
    634.55x = 329,330.58
  5. Step 5: Solve for x
    x = 329,330.58/634.55
  6. Step 6: Final answer
    x = 519.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.